What would be the
difference/distinction between conventional truth and ultimate
truth in Buddhism? If the self is an illusion, then any perception
of it as being real would be some form of delusion, wouldn't
it?
There are many articles available on the internet on
this Buddhist subject. Here is one. If you do have the time, you
can read up on it. en.wikipedia.org/wiki/Two_truths_doctrine
Regarding the analogy of the man
shot by an arrow, it is an interesting one. While it is more
pertinent that one gets treatment for the wound, it doesn't
necessarily render irrelevant who shot the arrow and where the
arrow comes from, and if the arrow is poisoned, knowing such
details would certainly help in getting the right antidote. And
even if the wounded person eventually dies, knowing such
information will further the cause of
justice.
That is not the
underlying message
The Christian does not say there is
no good in man. But it says that being good is not good enough to
be saved. One needs to be morally perfect. But since moral
perfection is impossible, we cannot save ourselves. We cannot
purify ourselves. We need a "cleansing agent", i.e. the blood of
Christ.
Moral perfection is
not an impossibility to Buddhists. Granted that most of us may
never be able to do so in just one lifetime. In Buddhism, we have
the 3 path of purifications to work on to arrived at it. Moral
purification is just one of the paths which have to be practiced in
conjunction with the other 2 path of purifications. Of course, we
also do have the more detail form of the 6 Perfections which do
lead to moral perfection.
Wiki says that the conventional truth may be interpreted as
"obscurative truth" or "that which obscures the true nature" as a
result. It is constituted by the appearances of mistaken awareness.
Conventional truth would be the appearance that includes a duality
of apprehender and apprehended, and objects perceived within that.
Ultimate truths, are phenomena free from the duality of apprehender
and apprehended.
Would you like to clarify that further? It would seem that
Buddhism holds that conventional truth can be false, but ultimate
truth is..well...truth i.e. what is.
In Christianity the distinction is between truth and
error.
Re the point about the arrow analogy, what would be the
underlying message? It would seem to me that you may have taken an
either/or approach, i.e. don't ask or get treatment. I think it can
be a both/and approach.
In Christianity, moral perfection means that a person has never
sinned against God throughout his entire life. Which is why I
mentioned that it is impossible to attain moral
perfection. The Bible also says that it is appointed for man
to die once and after that to face judgement, so this means that
there is no second chance at life, one life is all we have got.